import { CombinedStorageGraph } from "@/components/graph/CombinedStorageGraph";
import { StorageGraph } from "@/components/graph/StorageGraph";
import { FrigateStats } from "@/types/stats";
import { useMemo } from "react";
import {
  Popover,
  PopoverContent,
  PopoverTrigger,
} from "@/components/ui/popover";
import useSWR from "swr";
import { LuAlertCircle } from "react-icons/lu";
import { FrigateConfig } from "@/types/frigateConfig";
import { useTimezone } from "@/hooks/use-date-utils";
import { RecordingsSummary } from "@/types/review";
import { formatUnixTimestampToDateTime } from "@/utils/dateUtil";

type CameraStorage = {
  [key: string]: {
    bandwidth: number;
    usage: number;
    usage_percent: number;
  };
};

type StorageMetricsProps = {
  setLastUpdated: (last: number) => void;
};
export default function StorageMetrics({
  setLastUpdated,
}: StorageMetricsProps) {
  const { data: cameraStorage } = useSWR<CameraStorage>("recordings/storage");
  const { data: stats } = useSWR<FrigateStats>("stats");
  const { data: config } = useSWR<FrigateConfig>("config", {
    revalidateOnFocus: false,
  });

  const timezone = useTimezone(config);

  const totalStorage = useMemo(() => {
    if (!cameraStorage || !stats) {
      return undefined;
    }

    const totalStorage = {
      used: 0,
      total: stats.service.storage["/media/frigate/recordings"]["total"],
    };

    Object.values(cameraStorage).forEach(
      (cam) => (totalStorage.used += cam.usage),
    );
    setLastUpdated(Date.now() / 1000);
    return totalStorage;
  }, [cameraStorage, stats, setLastUpdated]);

  // recordings summary

  const { data: recordingsSummary } = useSWR<RecordingsSummary>([
    "recordings/summary",
    {
      timezone: timezone,
    },
  ]);

  const earliestDate = useMemo(() => {
    const keys = Object.keys(recordingsSummary || {});
    return keys.length
      ? new Date(keys[keys.length - 1]).getTime() / 1000
      : null;
  }, [recordingsSummary]);

  if (!cameraStorage || !stats || !totalStorage || !config) {
    return;
  }

  return (
    <div className="scrollbar-container mt-4 flex size-full flex-col overflow-y-auto">
      <div className="text-sm font-medium text-muted-foreground">Overview</div>
      <div className="mt-4 grid grid-cols-1 gap-2 sm:grid-cols-3">
        <div className="flex-col rounded-lg bg-background_alt p-2.5 md:rounded-2xl">
          <div className="mb-5 flex flex-row items-center justify-between">
            Recordings
            <Popover>
              <PopoverTrigger asChild>
                <button
                  className="focus:outline-none"
                  aria-label="Unused Storage Information"
                >
                  <LuAlertCircle
                    className="size-5"
                    aria-label="Unused Storage Information"
                  />
                </button>
              </PopoverTrigger>
              <PopoverContent className="w-80">
                <div className="space-y-2">
                  This value represents the total storage used by the recordings
                  in Frigate's database. Frigate does not track storage usage
                  for all files on your disk.
                </div>
              </PopoverContent>
            </Popover>
          </div>
          <StorageGraph
            graphId="general-recordings"
            used={totalStorage.used}
            total={totalStorage.total}
          />
          {earliestDate && (
            <div className="mt-2 text-xs text-primary-variant">
              <span className="font-medium">Earliest recording available:</span>{" "}
              {formatUnixTimestampToDateTime(earliestDate, {
                timezone: timezone,
                strftime_fmt:
                  config.ui.time_format == "24hour" ? "%d %b %Y" : "%B %d, %Y",
              })}
            </div>
          )}
        </div>
        <div className="flex-col rounded-lg bg-background_alt p-2.5 md:rounded-2xl">
          <div className="mb-5">/tmp/cache</div>
          <StorageGraph
            graphId="general-cache"
            used={stats.service.storage["/tmp/cache"]["used"]}
            total={stats.service.storage["/tmp/cache"]["total"]}
          />
        </div>
        <div className="flex-col rounded-lg bg-background_alt p-2.5 md:rounded-2xl">
          <div className="mb-5">/dev/shm</div>
          <StorageGraph
            graphId="general-shared-memory"
            used={stats.service.storage["/dev/shm"]["used"]}
            total={stats.service.storage["/dev/shm"]["total"]}
          />
        </div>
      </div>
      <div className="mt-4 text-sm font-medium text-muted-foreground">
        Camera Storage
      </div>
      <div className="mt-4 bg-background_alt p-2.5 md:rounded-2xl">
        <CombinedStorageGraph
          graphId={`single-storage`}
          cameraStorage={cameraStorage}
          totalStorage={totalStorage}
        />
      </div>
    </div>
  );
}